A heat treatment device for hand sewing needle production

Abstract

This utility model belongs to the field of heat treatment technology for hand sewing needles, specifically a heat treatment device for hand sewing needle production, including a quenching water tank and a frame. The frame includes a support plate mounted above the quenching water tank, a connecting frame fixedly mounted below the support plate, and a base plate fixedly mounted below the connecting frame. An upper mounting frame is detachably mounted above the mounting base. Multiple upper needle slots are evenly distributed below the upper mounting frame, and multiple lower needle slots are evenly distributed above the mounting base. Hand sewing needle bodies are detachably mounted in the corresponding upper and lower needle slots. An auxiliary needle positioning mechanism is provided on the upper mounting frame. Annular anti-slip patterns are evenly distributed on the lower and upper needle slots to prevent a large number of hand sewing needles from sinking into the cold tank during batch heat treatment quenching and cooling, which could easily cause needle accumulation and affect the quality of hand sewing needle production.

Description

Technical Field

[0001] This utility model belongs to the field of heat treatment technology for hand sewing needles, specifically a heat treatment device for the production of hand sewing needles. Background Technology

[0002] Hand sewing needles are commonly used tools in daily life and handicrafts, mainly for sewing materials such as cloth and leather. During the production of hand sewing needles, heat treatment is required to improve their hardness, toughness and wear resistance.

[0003] When heat-treating hand sewing needles, it is usually necessary to perform carburizing, quenching and other processes in sequence. Quenching is an important part of the heat treatment of hand sewing needles. When quenching hand sewing needles, the heated hand sewing needles need to be cooled quickly to increase the hardness of the hand sewing needles.

[0004] When hand sewing needles are heat-treated and quenched in batches, a large number of hand sewing needles sink into the cold pool, which can easily cause the needles to accumulate. This results in some hand sewing needles cooling slowly, and the resulting carbides lead to chromium depletion at the grain boundaries, causing intergranular corrosion, which in turn affects the quality of hand sewing needle production. Therefore, a heat treatment device for hand sewing needle production is proposed to address the above problems. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art and solve at least one of the technical problems mentioned in the background art, this utility model proposes a heat treatment device for the production of hand sewing needles.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: The heat treatment device for producing hand sewing needles according to this utility model includes a quenching water tank and a frame; the frame includes a support plate erected above the quenching water tank, a connecting frame fixedly installed below the support plate, a base plate fixedly installed below the connecting frame, and hand sewing needle placement mechanisms uniformly and detachably installed on both sides of the connecting frame in the vertical direction. The hand sewing needle placement mechanism includes a mounting base detachably installed on the connecting frame, an upper mounting frame detachably installed above the mounting base, a plurality of upper needle slots uniformly opened below the upper mounting frame, a plurality of lower needle slots uniformly opened above the mounting base, the upper needle slots and the lower needle slots are positioned correspondingly, and a hand sewing needle body is detachably installed in the corresponding upper and lower needle slots. An auxiliary needle positioning mechanism is provided on the upper mounting frame.

[0007] Preferably, the lower needle slot and the upper needle slot are uniformly provided with annular anti-slip textures.

[0008] Preferably, the upper two parts of the mounting base are provided with positioning holes, and the two parts of the upper mounting frame are provided with mounting holes. The positioning holes are adapted to the mounting holes, and the corresponding positioning holes and mounting holes are connected by fasteners.

[0009] Preferably, the auxiliary needle positioning mechanism includes a plurality of through holes evenly opened on the upper mounting frame, the plurality of through holes corresponding to the positions of a plurality of upper needle slots, and the through holes communicating with the upper needle slots. An auxiliary locking post is slidably connected to the through hole, a transverse support plate is fixedly installed above the plurality of auxiliary locking posts, a set of slides is fixedly installed below the transverse support plate, a set of sliding grooves is opened on the upper mounting frame, the corresponding slides are slidably connected to the sliding grooves, and the upper mounting frame is connected to the transverse support plate by a threaded rod.

[0010] Preferably, the support plate, connecting frame and base plate are integrally formed, and a lifting ring is fixedly provided above the support plate.

[0011] Preferably, an inlet valve pipe is fixedly installed below one side of the quenching water tank, and an outlet valve pipe is fixedly installed above the other side of the quenching water tank.

[0012] The beneficial effects of this utility model are:

[0013] This utility model provides a heat treatment device for the production of hand sewing needles. Through the structural design of the hand sewing needle holding mechanism, it achieves the effect of cold quenching for mass heat treatment of hand sewing needle bodies, avoiding a large number of hand sewing needles sinking into the cold pool, which can easily cause the accumulation of hand sewing needles and affect the quality of hand sewing needle production.

[0014] This utility model provides a heat treatment device for the production of hand sewing needles. Through the structural setting of the auxiliary needle positioning mechanism, the transverse support plate is moved down on the upper mounting frame by the threaded rod. At this time, the corresponding slide is slidably connected to the slide groove, and the auxiliary locking post under the transverse support plate slides in the corresponding through hole. The through hole is connected to the upper needle locking groove, so that the auxiliary locking post assists in the placement of the hand sewing needle body, improving the stability of the positioning of the hand sewing needle body. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0016] In the attached diagram:

[0017] Figure 1 This is a perspective view of the present invention;

[0018] Figure 2 This is a structural diagram of the frame and the hand-sewing needle storage mechanism;

[0019] Figure 3 It is a 3D diagram of a hand-sewing needle storage mechanism;

[0020] Figure 4 yes Figure 3 Enlarged view of point A in the middle;

[0021] Figure 5 This is a schematic diagram of the hand sewing needle storage mechanism;

[0022] Figure 6 This is a structural diagram of the mounting base.

[0023] Legend:

[0024] 1. Quenching water tank; 2. Support plate; 3. Connecting frame; 4. Base plate; 5. Mounting base frame; 6. Upper mounting frame; 7. Upper needle slot; 8. Lower needle slot; 9. Hand sewing needle body; 10. Circular anti-slip texture; 11. Positioning hole; 12. Mounting hole; 13. Through hole; 14. Auxiliary locking post; 15. Horizontal support plate; 16. Slide; 17. Slide groove; 18. Lifting ring; 19. Water inlet valve pipe; 20. Water outlet valve pipe. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] Specific implementation examples are given below.

[0027] Please see Figures 1-6This utility model provides a heat treatment device for the production of hand sewing needles, including a quenching water tank 1 and a frame. The frame can be submerged in the quenching water tank 1, which is used to liquid quench heated hand sewing needles. The frame includes a support plate 2 erected above the quenching water tank 1, a connecting frame 3 fixedly installed below the support plate 2, and a base plate 4 fixedly installed below the connecting frame 3. The structure of the frame supports the hand sewing needle placement mechanism, allowing the hand sewing needles to be positioned in the hand sewing needle placement mechanism and placed in the quenching furnace and quenching water tank 1 for heat treatment. Multiple connecting frames 3 are detachably and evenly arranged vertically on both sides of the hand sewing needle placement mechanism, which is used for batch processing of hand sewing needles. The hand sewing needle body 9 is stacked and positioned, thereby batching the hand sewing needle bodies 9 into the quenching water tank 1 for quenching treatment. The hand sewing needle placement mechanism includes a detachable mounting base 5 on the connecting frame 3, an upper mounting frame 6 detachably mounted above the mounting base 5, multiple upper needle slots 7 evenly opened below the upper mounting frame 6, and multiple lower needle slots 8 evenly opened above the mounting base 5. The upper needle slots 7 and lower needle slots 8 are positioned correspondingly, and the hand sewing needle bodies 9 are detachably mounted in the corresponding upper needle slots 7 and lower needle slots 8. An auxiliary needle positioning mechanism is provided on the upper mounting frame 6 to improve the stability of positioning the hand sewing needle bodies 9.

[0028] Furthermore, such as Figure 3 and Figure 4 As shown, the lower needle slot 8 and the upper needle slot 7 are evenly provided with annular anti-slip textures 10 to improve the stability of the hand sewing needle body 9 in positioning.

[0029] Furthermore, such as Figure 3 and Figure 6 As shown, the upper two parts of the mounting base 5 are provided with positioning holes 11, and the two parts of the upper mounting frame 6 are provided with mounting holes 12. The positioning holes 11 and the mounting holes 12 are matched. The corresponding positioning holes 11 and mounting holes 12 are connected by fasteners, which facilitates a stable connection between the mounting base 5 and the upper mounting frame 6.

[0030] Furthermore, such as Figure 2 and Figure 5As shown, the auxiliary needle positioning mechanism includes multiple through holes 13 evenly opened on the upper mounting frame 6. The multiple through holes 13 correspond to the positions of multiple upper needle slots 7, and the through holes 13 are connected to the upper needle slots 7. Auxiliary locking posts 14 are slidably connected to the through holes 13. A horizontal support plate 15 is fixedly installed above the multiple auxiliary locking posts 14. A set of slides 16 is fixedly installed below the horizontal support plate 15. A set of sliding grooves 17 is opened on the upper mounting frame 6. The corresponding slides 16 and sliding grooves 17 are slidably connected. The upper mounting frame 6 and the horizontal support plate 15 are connected by a threaded rod. Through this structure, the stability of the hand sewing needle body 9 installed in the upper needle slot 7 and the lower needle slot 8 is improved.

[0031] Furthermore, such as Figure 1 As shown, the support plate 2, connecting frame 3 and base plate 4 are integrally formed, and a lifting ring 18 is fixedly installed on the top of the support plate 2 to facilitate the removal and placement of the frame in the quenching water tank 1.

[0032] Furthermore, such as Figure 1 As shown, an inlet valve pipe 19 is fixedly installed on the lower side of one side of the quenching water tank 1, and an outlet valve pipe 20 is fixedly installed on the upper side of the other side of the quenching water tank 1. Cold water is connected to the inlet valve pipe 19, and the water with a higher temperature in the quenching water tank 1 is discharged through the outlet valve pipe 20 to ensure that the water in the quenching water tank 1 is at a lower temperature.

[0033] Working principle: The operator connects cold water to the inlet valve pipe 19 and discharges the water with a higher temperature in the quenching water tank 1 through the outlet valve pipe 20 to ensure that the water in the quenching water tank 1 is at a lower temperature, thus ensuring the cold extraction effect of heat treatment of the hand sewing needle body 9.

[0034] By using the structure of the hand sewing needle placement mechanism, the cold quenching effect of mass heat treatment of the hand sewing needle body 9 is achieved, avoiding the accumulation of a large number of hand sewing needles in the cold pool, which can cause some hand sewing needles to cool down slowly. The resulting carbides lead to chromium depletion at the grain boundaries, causing intergranular corrosion, which affects the quality of hand sewing needle production. By pre-fixing the hand sewing needle body 9 to be heat treated evenly on the hand sewing needle placement mechanism, that is, by placing the needle tips of the hand sewing needle body 9 in the lower needle tip slot 8 of the mounting base 5 in batches, and then positioning the mounting base 5 and the upper mounting frame 6 with fasteners, the corresponding upper needle tip slot 7 and lower needle tip slot 8 engage to position the hand sewing needle body 9. Furthermore, the annular anti-slip texture 10 of the lower needle tip slot 8 and the upper needle tip slot 7 improves the stability of the hand sewing needle body 9 in positioning.

[0035] By using the structure of the auxiliary needle positioning mechanism, the transverse support plate 15 is moved down on the upper mounting bracket 6 via the threaded rod. At this time, the corresponding slide 16 is slidably connected to the slide groove 17, and the auxiliary locking post 14 below the transverse support plate 15 slides in the corresponding through hole 13. The through hole 13 is connected to the upper needle locking groove 7, so that the auxiliary locking post 14 assists in the placement of the hand sewing needle body 9, thereby improving the stability of the positioning of the hand sewing needle body 9.

[0036] Then, hand sewing needle placement mechanisms are evenly installed on both sides of multiple connecting frames 3 in the vertical direction, and the frame is placed in a heat treatment box for heating. After the heating is completed, the frame is taken out by the lifting ring 18 and placed in the quenching water tank 1 for batch cold treatment of the hand sewing needle body 9.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A heat treatment apparatus for the production of hand sewing needles, comprising a quenching water tank (1) and a frame; characterized in that: The frame includes a support plate (2) erected above the quenching water tank (1), a connecting frame (3) fixedly installed below the support plate (2), a base plate (4) fixedly installed below the connecting frame (3), and a hand sewing needle placement mechanism uniformly and detachably installed on both sides of the connecting frame (3) in the vertical direction. The hand sewing needle placement mechanism includes a mounting base (5) detachably installed on the connecting frame (3), an upper mounting frame (6) detachably installed above the mounting base (5), a plurality of upper needle slots (7) uniformly opened below the upper mounting frame (6), and a plurality of lower needle slots (8) uniformly opened above the mounting base (5). The upper needle slots (7) and the lower needle slots (8) are positioned correspondingly, and a hand sewing needle body (9) is detachably installed in the corresponding upper needle slots (7) and lower needle slots (8). An auxiliary needle positioning mechanism is provided on the upper mounting frame (6).

2. The heat treatment apparatus for hand sewing needle production according to claim 1, characterized in that: The lower needle slot (8) and the upper needle slot (7) are evenly provided with annular anti-slip textures (10).

3. The heat treatment apparatus for hand sewing needle production according to claim 1, characterized in that: The mounting base (5) has two positioning holes (11) on its upper part, and the upper mounting bracket (6) has two mounting holes (12) on its upper part. The positioning holes (11) and the mounting holes (12) are adapted to each other, and the corresponding positioning holes (11) and the mounting holes (12) are connected by fasteners.

4. The heat treatment apparatus for producing hand sewing needles according to claim 1, characterized in that: The auxiliary needle positioning mechanism includes a plurality of through holes (13) evenly opened on the upper mounting frame (6). The plurality of through holes (13) correspond to the positions of the plurality of upper needle slots (7) respectively, and the through holes (13) are connected to the upper needle slots (7). An auxiliary locking post (14) is slidably connected on the through hole (13). A horizontal support plate (15) is fixedly installed above the plurality of auxiliary locking posts (14). A set of slides (16) is fixedly installed below the horizontal support plate (15). A set of sliding grooves (17) is opened on the upper mounting frame (6). The corresponding slides (16) are slidably connected to the sliding grooves (17). The upper mounting frame (6) and the horizontal support plate (15) are connected by a threaded rod.

5. The heat treatment apparatus for producing hand sewing needles according to claim 1, characterized in that: The support plate (2), the connecting frame (3) and the base plate (4) are integrally formed, and a lifting ring (18) is fixedly provided on the top of the support plate (2).

6. The heat treatment apparatus for producing hand sewing needles according to claim 1, characterized in that: A water inlet valve pipe (19) is fixedly installed below one side of the quenching water tank (1), and a water outlet valve pipe (20) is fixedly installed above the other side of the quenching water tank (1).

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